MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9d39f83f72664ef3e95f07ac9ed16a411de2fdff48f5a88aa346f9671c44c543. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


GuLoader


Vendor detections: 9


Intelligence 9 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9d39f83f72664ef3e95f07ac9ed16a411de2fdff48f5a88aa346f9671c44c543
SHA3-384 hash: 70ffb1a9d255cbc8351bcef785bcac19d0a25026d2f7a9c30beeb294b4a5815cc4fc6c8126a210da52880cb2b364ee32
SHA1 hash: 83d6ec2c2a75a5242c2d5f1270e91367616211e6
MD5 hash: 88fee451ee8a4be3e5ac92ceea605d61
humanhash: skylark-lima-illinois-orange
File name:88fee451ee8a4be3e5ac92ceea605d61.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:151'552 bytes
First seen:2021-03-16 19:22:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 82f3154e4b314b6810b189c7a61b6a27 (5 x GuLoader, 2 x RemcosRAT)
ssdeep 3072:IuJ8gWc+X+vWa3jioWyda6bxFEbg39pp7yKSHVDTJM:FCcPvW8ji9yda6bXEbg39pp7yKS3
Threatray 6 similar samples on MalwareBazaar
TLSH D5E34A4771005CBCD6483170451EEEB63622ECB58180AF27B2E47D5BE8BE5D12DEAF1A
Reporter abuse_ch
Tags:exe GuLoader


Avatar
abuse_ch
GuLoader payload URL:
https://telmed.cl/we/T6_FB%20bin_JiEeZbRdf228.bin

Intelligence

File Origin
# of uploads :
1
# of downloads :
333
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
88fee451ee8a4be3e5ac92ceea605d61.exe
Verdict:
No threats detected
Analysis date:
2021-03-16 19:59:09 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/dd31e8f9-5c08-453c-9b76-ed49d92610b0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Guloader
Create hunting rule
Link:
https://www.capesandbox.com/analysis/124413/
Detection(s):
SecuriteInfo.com.__vbaHresultCheckObj.21943.30074.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/00b49996-dec9-4d3d-8cad-edfaba30f183
Result
Threat name:
FormBook GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/641305
Signature
Antivirus detection for URL or domain
Contains functionality to hide a thread from the debugger
Detected RDTSC dummy instruction sequence (likely for instruction hammering)
Hides threads from debuggers
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected Generic Dropper
Yara detected GuLoader
Yara detected VB6 Downloader Generic
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 369627 Sample: Fym9exdpg8.exe Startdate: 16/03/2021 Architecture: WINDOWS Score: 100 33 www.angelaahbzanderson.com 2->33 35 angelaahbzanderson.com 2->35 45 Multi AV Scanner detection for domain / URL 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for URL or domain 2->49 51 7 other signatures 2->51 11 Fym9exdpg8.exe 1 2->11         started        signatures3 process4 signatures5 61 Detected RDTSC dummy instruction sequence (likely for instruction hammering) 11->61 63 Tries to detect Any.run 11->63 65 Tries to detect virtualization through RDTSC time measurements 11->65 67 2 other signatures 11->67 14 Fym9exdpg8.exe 6 11->14         started        process6 dnsIp7 43 telmed.cl 190.4.211.181, 443, 49731 CTCCORPSATELEFONICAEMPRESASCL Chile 14->43 69 Modifies the context of a thread in another process (thread injection) 14->69 71 Tries to detect Any.run 14->71 73 Maps a DLL or memory area into another process 14->73 75 3 other signatures 14->75 18 explorer.exe 14->18 injected signatures8 process9 dnsIp10 37 espressoandhoney.com 192.0.78.25, 49758, 80 AUTOMATTICUS United States 18->37 39 www.lapeliculaonline.com 18->39 41 www.espressoandhoney.com 18->41 53 System process connects to network (likely due to code injection or exploit) 18->53 22 chkdsk.exe 18->22         started        25 autofmt.exe 18->25         started        27 autoconv.exe 18->27         started        signatures11 process12 signatures13 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 59 Tries to detect virtualization through RDTSC time measurements 22->59 29 cmd.exe 1 22->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9d39f83f72664ef3e95f07ac9ed16a411de2fdff48f5a88aa346f9671c44c543/
Threat name:
Win32.Trojan.Vebzenpak
Create hunting rule
Status:
Malicious
First seen:
2021-03-15 18:30:00 UTC
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=tu47qp3smzhph2k7a6wj5ulkieo6f7p7jd22rcvdi34wohceyvbq._file
Verdict:
malicious
Label(s):
guloader
Create hunting rule
Similar samples:
45b6514aad30eb4fafa445c6ce8f1fa69e6b4f568f5e05a74e999c295487b850
GuLoader
7eaa2c0c3cd26e9495e9de67413f860820a713141429e921861d239d80475df3
GuLoader
8939f7bfa3b5c5afeeab65dc9958edda8dd67f0c1e54f75e9205f0eaf3f8adcd
GuLoader
b38e4017409179a0ce847e5951e61479128caaaa7a721bf1acbece8dfc7ccc54
GuLoader
b8d430b1bdab27f5308b0f3817a50718dc72c01f0a126c44c15e0959efd3f588
GuLoader
d6126052ac0b62aadfefafcad46980f864cd94c47c6096cc32f17d99f04a5fbf
GuLoader
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/210316-whjwxbkycn/
Behaviour
Suspicious use of SetWindowsHookEx
Unpacked files
SH256 hash:
9d39f83f72664ef3e95f07ac9ed16a411de2fdff48f5a88aa346f9671c44c543
MD5 hash:
88fee451ee8a4be3e5ac92ceea605d61
SHA1 hash:
83d6ec2c2a75a5242c2d5f1270e91367616211e6
Link:
https://www.unpac.me/results/c1d814b2-12e1-43ff-9476-c0f811512f2f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
GuLoader
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/9d39f83f72664ef3e95f07ac9ed16a411de2fdff48f5a88aa346f9671c44c543

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

GuLoader

Executable exe 9d39f83f72664ef3e95f07ac9ed16a411de2fdff48f5a88aa346f9671c44c543

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1060756/
  
URLhaus
https://urlhaus.abuse.ch/url/1069565/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/124413/

Comments